From -4.3 to -3.2, the difference is 1.1
the formula is
an=-4.3+1.1(n-1) or
an=-3.2+1.1n
Answer:
32(8) = 256
The area of the rectangle is 256.
I think that the answer is a hoped i helped
Answer:
You need to show a graph so we can calculate the problem.
Step-by-step explanation:
X= 9th student test score
Add the 9 test scores and divide that total by 9 to equal the average.
(56 + 92 + 78 + 64 + 85 + 83 + 91 + 77 + x)/9= 78
add in parentheses
(626 + x)/9= 78
multiply both sides by 9
626 + x= 702
subtract 626 from both sides
x= 76
ANSWER: 76 is the score needed by the 9th student for a mean of 78.
Hope this helps! :)
